IL6 and infection: Additionally, this transduced mouse model exhibited sensitivity to neutralization by nAbs, detectable lung histopathological damage by hematoxylin and eosin tissue staining, and significant increase in cytokine storm, that is, IL‐6, CXCL‐10, and IL‐28a/b, with infection progression and a decrease in body weight.[253] The second approach involved developing a special SARS‐virus strain that was more suited for mouse lethal infection.